Model 770SS

The Model 770SS rolling sheet door is a great option for facilities that require a quality door that installs quickly, operates dependably, and requires minimal maintenance. Like the other doors of our rolling sheet door line, this 26-gauge door features quick-connect components that simplify and speed installation while ensuring door sturdiness.

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  • Dual exterior curtain slide bolt lock
  • Header draft seal​
  • Left-side lock and step plate
  • Wind loading: Integrated curtain wind locks and guide to withstand wind loading to minimum design pressures of 36/-36 psf (175/-175 kgf/sq m) ​


Forest Green
Dark Teal
Walnut Brown
Garnet Red
Polar Blue
Royal Blue
Desert Tan
Silhouette Gray​​​​

Actual door color may vary from the digital representation shown here.

Color samples are available by request.


Standard max width:

10' (3048 mm)

Standard max height:

10' (3048 mm)

Quick-connect headplate:

11-gauge steel

Curtain material:

High strength steel

Bottom seal:

Bulb-type, astragal seal

Standard springs:

3 3/8" (86 mm) torsion springs

Quick-connect bottom bar stops:

14-gauge galvanized steel

Guide rub strips:

Polypropylene strips on both edges


Right-side, two-bolt, yellow Di-Chromate Super Seal curtain lock

Curtain rub strips:

Flexible webbing on both front edges


Manual push up center handle with side step plate, and center rope attached to bottom bar

Exterior/interior finish:

Paint finish in choice of 11 standard colors: white, glossy white, garnet red, royal blue, polar blue, forest green, desert tan, dark teal, teal, walnut brown and bronze


26-gauge, roll-formed, galvanized steel sections interlocked and seamed to form full door height

Bottom bar:

Extruded aluminum reinforced with steel, roll-formed angles

Universal guides:

18-gauge, roll-formed galvanized steel, pre-punched through-hole design for mounting to concrete, masonry, steel or wood jambs

Counterbalance Assembly:

9" (229 mm) steel “stepped” rings to minimize headroom and enhance door operation

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